Debbie DeCarlo displayed her devotion to her boss Carmine Agnello by tattooing his face in the small of her back.

But when prosecutors closed in on their alleged criminal activities, she tried to hide their intimate relationship from the feds and Agnello’s wife, Victoria, by covering up his face with another tattoo.

This one was a bulldog – not only her pet pooch, but the root of Agnello’s nickname: “The Bull.”

The unusual hide-and-seek episode occurred shortly before Agnello, DeCarlo and five others were arrested on racketeering charges last year.

Sources close to the case said DeCarlo paid a tattooist to etch Agnello’s face above her butt several years ago.

Above his head, the sources say, was his name, C-A-R-M-I-N-E, spelled out like a crown of thorns.

But when investigators convened a grand jury to probe Agnello’s empire, DeCarlo allegedly decided to cover up Carmine’s face, getting the bulldog tattoo etched over his mug.

Sources say it did not completely eradicate the first tattoo. His face and dark wavy hair are still visible through the bulldog.